071ccfcd-384a-4726-b926-0e5c5701c405IMD JOB

`artifacts/answer.json` is written and `check-answer.mjs` prints `ok`. The average sale price of TatakaeFYT over blocks 26019452 to 26026608 is **21760395238095238 wei**. - **Window:** the closing block hash matched the pin on all three endpoints I used. Those were publicnode, flashbots and mevblocker. - **Method:** I fetched every ERC-721 `Transfer` log on the collection over the window (45 logs in 29 transactions). I then decoded the Seaport 1.5 and 1.6 `OrderFulfilled` events from those transactions' receipts and applied the sale and price definitions. This is not a scan of all Seaport logs, but any ERC-721 fill also emits a `Transfer` on the collection, so it should catch every sale. - **Result:** 21 qualifying sales, summing to 456968300000000000 wei, 13 listing fills and 8 bid fills. None was dropped for being paid in another token. A transaction with several fills counts each fill once. - **Recipe kind:** the brief says `"evidence": "panel"`, so the checker only accepts a `panel` recipe. Its `source` is the publicnode endpoint URL. The full recomputation steps are in `notes`. I did not run the provided `scan.mjs` for the figure. It can't decode Seaport's nested items, so I used my own decoder in `test/scratch/`. Nothing else was created or modified, and the working tree is clean because `artifacts/` is untracked.

`artifacts/answer.json` is written and passes the checker (`ok`, exit 0). It's untracked (the repo excludes `artifacts/`), so the daemon uploads it. **Answer: 21760395238095238 wei** (≈0.02176 ETH), = floor(456968300000000000 / 21). How it was computed over exactly blocks 26019452–26026608: - Confirmed `eth_chainId` = 1 and the pinned closing hash `0x84272223…bf3f` on both endpoints before counting. - Two-step scan so no large `eth_getLogs` range could be silently truncated: collection `Transfer` logs over the window (45 transfers, 29 distinct blocks), then `OrderFulfilled` on Seaport 1.5 + 1.6 one block at a time for just those blocks (117 events). Complete, since a filled Seaport order always moves the token. - Decoded each event's `offer`/`consideration` and applied the brief's rules: 21 events held exactly one itemType-2 item of the collection and no other NFT, and every one of them was paid wholly in ETH or WETH — nothing dropped for a bundle, an ERC-1155 leg or a foreign token. Prices ran 0.015–0.042 ETH; sum 456968300000000000 wei. - Ran the whole scan independently on `rpc.flashbots.net/fast` and `ethereum-rpc.publicnode.com` (different operators); identical counts, sum and mean. Two things worth flagging, both stated in the answer file: - **The one judgment call.** Tx `0xdd89a0ad…1047` emits two qualifying events for token 1003 — the bid side (0.0155) and the matching listing side (0.015345), i.e. one trade seen from both counter-orders. The brief defines a sale as *an OrderFulfilled event* meeting the item test, so I counted both. Collapsing matched pairs instead would give 20 sales and a mean of 22081165000000000; the pinned definition is event-level, so I went with 21. - **The recipe.** The brief carries `"evidence": "panel"`, so the recipe is `{kind: "panel", source}` naming the RPC — the checker enforces that. None of the four chain recipes can express "decode Seaport items, keep single-ERC-721 ETH/WETH fills, take the mean", so the full procedure is in `notes` rather than in a rerunnable recipe. I used a purpose-written decoder in `test/scratch/` instead of `scan.mjs`, which sums a fixed data word and can't distinguish a listing from a bid or reject a non-ETH payment.

Created `artifacts/answer.json` with the average **21760395238095238 wei** across 21 qualifying sales and self-contained reproduction code. The required checker prints `ok`.

Created [artifacts/answer.json](artifacts/answer.json) with the typed answer and reproduction script. Average: **21,760,395,238,095,238 wei** across **21 qualifying sales**. Embedded reproduction matched the scanned data. Required validator printed `ok`.

Check passes with `ok`. The answer file is complete: average sale price of TatakaeFYT over the pinned window is **21760395238095238 wei** (21 qualifying Seaport fills, sum 456968300000000000 wei, floor-divided by 21), written to `artifacts/answer.json` with the `panel` recipe (source: the RPC endpoint), matching definitions copied/extended from the brief, and pin-verified on two independent RPC operators.

Created `artifacts/answer.json` with **21760395238095238 wei**, averaged over 21 qualifying sales, plus definitions and runnable reproduction code. The required validator printed `ok`; independent decoding and rounding checks also passed.

Created `artifacts/answer.json` with the reproduction procedure. Average: **21,760,395,238,095,238 wei** across **21 qualifying sales**. The required validator printed `ok`.

Created [artifacts/answer.json](artifacts/answer.json) with the answer **21760395238095238 wei**, based on 21 qualifying sales, and reproduction code. Required validator printed `ok`.

`artifacts/answer.json` is written and passes `check-answer.mjs`. Since the brief pins `"evidence": "panel"`, the required recipe is `{kind: "panel", source}` (the only kind allowed for panel-evidence questions), even though the fact itself was computed on-chain per the definitions. Summary of the computation: - Fetched all Seaport `OrderFulfilled` logs (12,232 total) from Seaport 1.5 and 1.6 over blocks 26019452–26026608, from two independent public RPC endpoints (publicnode, flashbots); both confirmed the pinned closing-block hash and produced identical results. - Decoded each log's `offer`/`consideration` arrays by hand, keeping fills with exactly one ERC-721 item (itemType 2) of the TatakaeFYT collection and no other NFT, priced entirely in ETH or WETH per the brief's definitions. - Found 21 qualifying sales, sum 456,968,300,000,000,000 wei, average = 21,760,395,238,095,238 wei (floor).

Completed [artifacts/answer.json](/home/imd-worker/.identitymd/work/071ccfcd-384a-4726-b926-0e5c5701c405/5d631bf4-b52b-4839-bfde-821496a9adde/artifacts/answer.json). Answer: `21760395238095238` wei. Validator result: `ok`.

Done. `artifacts/answer.json` is written and the plane's checker prints `ok`. **Answer: 21760395238095238 wei** (~0.02176 ETH) — the floor-average TatakaeFYT sale price on OpenSea over the pinned window. How it was computed: - Scanned `eth_getLogs` for the Seaport `OrderFulfilled` topic on both pinned contracts (Seaport 1.5 and 1.6) over exactly blocks 26019452–26026608, from `https://ethereum-rpc.publicnode.com`, in 800-block chunks with halving on refusal and logs deduplicated by block:logIndex. The chain id and the pinned closing hash `0x8427…bf3f` were confirmed on the scan endpoint and cross-checked on `https://eth.drpc.org`, a second operator. - Of 12,232 OrderFulfilled logs, 21 involved the collection, and all 21 qualified under the brief's definitions: 13 listing fills (single offer item is the ERC-721; every consideration item was ETH or WETH, so price = sum of consideration amounts, fees included) and 8 bid fills (single offer item is ETH or WETH; price = the offer amount). None involved another NFT or a non-ETH/WETH token, so nothing was excluded. - Sum of prices = 456,968,300,000,000,000 wei; average = floor(sum / 21) = 21,760,395,238,095,238 wei. This satisfies the `min: 1` guard. The answer file copies the request id, chain, and window verbatim from the brief, uses the `panel` recipe (the brief pins `evidence: "panel"`) with the RPC endpoint as its source, restates all four pinned definitions plus the exact topic0 used, and records the full method and counts in `notes`. The decoding scaffold lives in `test/scratch/avg.mjs` (outside the deliverable paths, auto-deleted before submission), and `artifacts/answer.json` is left untracked for the daemon to upload.

`check-answer.mjs` prints **ok**. ## Answer **21760395238095238 wei** (≈0.021760 ETH) — the floored mean of **21** qualifying Seaport sales totalling **456968300000000000 wei** over blocks 26019452–26026608. ### How it was computed - **Pin confirmed** on two independent operators (`ethereum-rpc.publicnode.com`, `eth.drpc.org`): block `0x18d2270` hash `0x8427…bf3f`, `eth_chainId` `0x1`. - **Enumeration**: `scan.mjs --address 0xcec6…877f --event "Transfer(address,address,uint256)"` over the pinned range → `pinned true`, 45 logs, 29 transactions. A Seaport fill of this collection must emit that ERC-721 Transfer in the same tx, so this reaches the same set as a full Seaport scan for a fraction of the reads. - **Decode**: receipts of those 29 txs → 21 `OrderFulfilled` logs from Seaport 1.5/1.6, all 21 qualifying. Item types across them: 25 native ETH, 20 WETH, 21 ERC-721, and no itemType 3/4/5 — so no bundle, ERC-1155 or other-token fill needed excluding. 13 listing fills (price = Σ consideration, fees in) and 8 bid fills (price = the WETH offer amount). ### Checks run - Decoder validated against the chain: for the 8 txs with exactly one `OrderFulfilled` paid wholly in native ETH, decoded price equalled `tx.value` in **8 of 8**. - Whole enumeration repeated against a single endpoint (publicnode, 500-block chunks): identical 45 logs / 29 txs / 21 fills, so nothing was truncated. drpc refused one range with a free-plan message; the halve-and-retry path covered it. ### Judgement calls, all stated in `definitions` Each `OrderFulfilled` log is one sale (one block held a buy-and-resell of token 1003 — both fills count); the single-NFT test spans offer *and* consideration; a bid fill's price is the gross offer amount, fees included; WETH is the only ERC-20 accepted; the mean is floored (`456968300000000000 = 21 × 21760395238095238 + 2`). The brief carries `"evidence": "panel"`, so the recipe is `{ kind: "panel", source }` naming the RPC reads — the checker refuses a non-panel recipe here. `artifacts/answer.json` is written and left untracked for the daemon to upload; scratch work stayed in `test/scratch/`.

Created [artifacts/answer.json](artifacts/answer.json) with **21760395238095238 wei**, averaged across 21 qualifying sales, and reproducible RPC computation code. Required checker printed `ok`; independent decoding confirmed the result.

failed to start git: spawn git ENOENT

FAILURE: internal_error

Selected model is at capacity. Please try a different model.

FAILURE: runtime_error

stream disconnected before completion: You have no credits remaining. Add credits to continue using the API at https://platform.openai.com/settings/organization/billing/.

FAILURE: runtime_error

Created [artifacts/answer.json](/Users/peterhucik/.identitymd/work/071ccfcd-384a-4726-b926-0e5c5701c405/5d631bf4-b52b-4839-bfde-821496a9adde/artifacts/answer.json). Average sale price: `21760395238095238` wei. Validation passed: `ok`.

Created [artifacts/answer.json](/root/.identitymd/work/071ccfcd-384a-4726-b926-0e5c5701c405/5d631bf4-b52b-4839-bfde-821496a9adde/artifacts/answer.json). Average sale price: `21760395238095238` wei. Validation passed: `check-answer.mjs` printed `ok`.

required named outputs are invalid: artifacts/answer.json: ENOENT: no such file or directory, lstat 'C:\Users\owner\.identitymd\work\071ccfcd-384a-4726-b926-0e5c5701c405\5d631bf4-b52b-4839-bfde-821496a9adde\artifacts'

FAILURE: runtime_error

Created `artifacts/answer.json` with **21760395238095238 wei**, averaged over 21 qualifying sales. The included reproduction script returned the same result. The required validator printed `ok`.

Created `artifacts/answer.json` with **21760395238095238 wei**, averaged over 21 qualifying sales, plus reproduction code. Reproduction check passed; the required validator printed `ok`.

`artifacts/answer.json` is written and `check-answer.mjs` prints `ok`. The average sale price is **21760395238095238 wei**, about 0.02176 ETH. - **Sales counted:** 21 qualifying sales over blocks 26019452–26026608. Of these, 13 were listing fills and 8 were bid fills. - **Exclusions:** none. All 21 fills that touched the collection were single ERC-721 fills paid in ETH or WETH. - **Total:** the prices sum to 456968300000000000 wei, and dividing by 21 and rounding down gives the answer. - **How I computed it:** I took the collection's Transfer logs over the window (45 transfers in 29 blocks). For each of those blocks I read the `OrderFulfilled` logs from both Seaport contracts and decoded them by hand. This finds every fill because a fill of the NFT must transfer it in the same block. I did not run the delivered `scan.mjs`, since it can't decode Seaport's nested item arrays. - **Matched orders:** a matchOrders pair emits two events and both count, each priced by its own order. One block (26020451) has four identical prices, which may be this or a sweep. - **Pin check:** the closing block hash matched the pin on `https://ethereum-rpc.publicnode.com`, where I ran the scan. I confirmed it on `https://rpc.flashbots.net/fast`, a different operator. - **Recipe kind:** the brief sets `evidence: "panel"`, so the checker only accepts a `panel` recipe. Its `source` names the RPC endpoint and the topic filter I used. - **Checker fix:** the checker also compares the window's key order exactly, so `window` is written as toBlock, fromBlock, toBlockHash to match the brief. - **Scratch:** the scratch script is at `test/scratch/t.mjs`, inside the allowed scratch directory, and I touched nothing else outside `artifacts/answer.json`.

I wrote `artifacts/answer.json` with an average sale price of **21760395238095238 wei**, and `check-answer.mjs` prints `ok` for it. - **Sales counted:** 21 qualifying sales, totalling 456968300000000000 wei. I floored the mean. - **Scan:** I pulled all 12,232 `OrderFulfilled` logs from Seaport 1.5 and 1.6 over exactly blocks 26019452–26026608. I used my own script in `test/scratch/s.mjs`, not `scan.mjs`, because the log filter can't select by collection and each log had to be decoded by hand. The closing block hash matched the pin. - **Endpoints:** `https://ethereum-rpc.publicnode.com`, with `https://rpc.flashbots.net/fast` and `https://rpc.mevblocker.io/fast` as fallbacks. I did not record which endpoint answered which request. - **Recipe kind:** the brief says `"evidence": "panel"`, and the check rejects any other recipe kind for such a question. So the recipe is `panel`, with the RPC endpoint and Seaport addresses as its source. The deployer therefore has nothing to rerun. The panel's agreement on the value is the evidence. - **Open definitions:** the `definitions` field states the sale, price and average rules as I applied them. Native ETH means the zero-address item, and any other payment token excludes the sale. The scratch script sits in `test/scratch/`, which is not submitted, and `git status` shows nothing tracked as changed.

`artifacts/answer.json` is written, and `check-answer.mjs` prints `ok` for it. The average sale price of TatakaeFYT over blocks 26019452 to 26026608 is **21760395238095238 wei**, about 0.02176 ETH. - **Sales counted:** 21 qualifying sales totalling 456968300000000000 wei, 13 listing fills and 8 bid fills. None was excluded for being paid in another token or for an unusual shape. - **Repeated prices:** several of the 21 sales share a price, and some of them sit in the same transaction. Each `OrderFulfilled` log counts as its own sale. - **Scan:** I decoded all 12,232 Seaport 1.5 and 1.6 `OrderFulfilled` logs in the window and applied the definitions in `oracle.json`. That was one complete scan from `https://ethereum-rpc.publicnode.com`, which returned chain id 1 and the pinned hash for block 26026608. I did not cross-check on a second endpoint. - **Recipe kind:** the brief sets `"evidence": "panel"`, so the checker only accepts a `panel` recipe. I named the RPC endpoint and the event query as its source, and the scan details are in `notes`. - **Scratch script:** `test/scratch/run.mjs` is the script that produced the number. It is untracked, and the only file left to deliver is `artifacts/answer.json`.

I wrote `artifacts/answer.json`. The average sale price is **21760395238095238 wei** (about 0.02176 ETH), and `check-answer.mjs` prints `ok` for the file. **How I got the number:** - **Data source:** I pulled every `OrderFulfilled` log from Seaport 1.5 and 1.6 over exactly blocks 26019452–26026608, using `https://ethereum-rpc.publicnode.com`. That endpoint returned chain id 1, and its hash for block 26026608 matched the pinned hash. I also checked the pinned hash on a second operator, `https://rpc.flashbots.net/fast`, and it matched. - **Fetching:** I fetched in 500-block chunks, splitting any chunk that errored. That gave 12,232 logs, about 850 per chunk, which is far below typical caps. I don't think any chunk was cut short, but I didn't compare it against a second full scan. - **Filtering:** I applied the request's definitions as written: - A sale has exactly one ERC-721 token of the collection and no other NFT. - For a listing fill, the price is the sum of all consideration amounts, and only counts if every item is ETH or WETH. - For a bid fill, the price is the ETH or WETH offer amount. - **Result:** 21 sales qualified, and none were dropped for being paid in another token. The prices add up to 456968300000000000 wei (the `figure` field). Dividing by 21 and rounding down gives the answer. **Things to know:** - **Recipe kind is `panel`:** the brief sets `"evidence": "panel"`, and the checker requires a `panel` recipe in that case. Its `source` field names the endpoint and the log query, so nobody reruns it; the answer stands on panel agreement. The definitions are copied into the answer, and the notes list all 21 prices. - **Custom scan script:** the supplied `scan.mjs` can't decode Seaport's offer and consideration lists, so I wrote a small Node script in `test/scratch/` that reuses its hashing function. The script isn't submitted. - **Files:** I wrote nothing outside `artifacts/answer.json` and `test/scratch/`, which avoids the earlier out-of-scope-path failure. The answer file is not committed or force-added.

Created [artifacts/answer.json](/home/imd/.identitymd/work/071ccfcd-384a-4726-b926-0e5c5701c405/5d631bf4-b52b-4839-bfde-821496a9adde/artifacts/answer.json). Average sale price: `21760395238095238` wei. Validation passed: `check-answer.mjs` printed `ok`.

Created [artifacts/answer.json](/home/imd-worker/.identitymd/work/071ccfcd-384a-4726-b926-0e5c5701c405/5d631bf4-b52b-4839-bfde-821496a9adde/artifacts/answer.json). Average sale price: `21760395238095238` wei across 21 qualifying sales. The supplied checker prints `ok`.

Created `artifacts/answer.json` with the reproduction recipe. Average: **21,760,395,238,095,238 wei** across **21 qualifying sales**. The required checker printed `ok`.

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FAILURE: runtime_error

I wrote `artifacts/answer.json`. The average sale price is **21760395238095238 wei** (about 0.02176 ETH). That comes from 21 qualifying sales totalling 456968300000000000 wei, divided and rounded down. The answer checker prints `ok`. **How I computed it** - **Pin check:** the endpoint reported chain id 1, and block 26026608's hash matched the pinned hash. - **Scan:** I pulled the Seaport OrderFulfilled events on both contracts over exactly blocks 26019452–26026608, splitting the range whenever an endpoint refused it. That returned 12,232 events. - **Matches:** decoding them left 21 fills of exactly one TatakaeFYT token paid in ETH or WETH, all on Seaport 1.6. Twelve were listing fills and nine were bid fills. - **Cross-check:** I also went the other way, starting from the collection's own logs in the window (36 transactions). Their receipts contain exactly the same 21 events. **Choice you may want to review:** in block 26024895, one accepted offer produced two events: the bid and its matching counter-order. The request defines a sale as each qualifying event, so I counted both. If that trade were counted once, the answer would be 20 sales and an average of 22081165000000000 wei. I stated this under `definitions` and in `notes`. **Other points:** - The request is marked as panel evidence, so the recipe is `{kind: "panel", source}`, and the source names the RPC query I ran. - The first scan returned zero sales because of a bug in my decoder: it read each item's token address from the wrong position. I fixed it before the final scan. - This time all my scratch scripts are in `test/scratch/` at the repo root, not under `.imd/`, which is what got the previous attempt rejected. The only deliverable file is `artifacts/answer.json`, and it is left untracked.

Created [artifacts/answer.json](artifacts/answer.json) with the definitions and reproduction procedure. Average: **21,760,395,238,095,238 wei** across **21 sales**. Required validator printed `ok`.

Computed average sale price: `21760395238095238` wei. Wrote [artifacts/answer.json](/home/imd-worker2/.identitymd/work/071ccfcd-384a-4726-b926-0e5c5701c405/5d631bf4-b52b-4839-bfde-821496a9adde/artifacts/answer.json) and verified it with the supplied checker (`ok`).

I'll start by reading the pinned request and the skill reference files.Now let me look at the workspace layout.Workspace is clean — only `.imd` and `.git`. The brief is a chain question but marked `"evidence": "panel"`, so the recipe must be `{kind: "panel", source}` per the checker. I'll compute the figure myself from `eth_getLogs` over the pinned window with a scratch script under `test/scratch/` (the prior failure was writing under `.imd/`).Running the scan against ethereum-rpc.publicnode.com.Pin confirmed, scan complete: 12,232 `OrderFulfilled` logs, 21 qualifying sales, average 21,760,395,238,095,238 wei. Before writing the answer I'll (1) confirm the closing hash on a second operator's endpoint, and (2) rerun with exclusion-reason counters to sanity-check the 21 qualifying fills.I used the wrong hex in that curl — 26026608 is `0x18d2270`. Let me fix the loop tallies and re-check the pin on a second endpoint.Second endpoint confirms the pinned hash. Rerunning the scan with exclusion-reason tallies.Consistent result: 21 qualifying fills (13 listings, 8 bids), sum 456,968,300,000,000,000 wei, floor-average 21,760,395,238,095,238 wei. Excluded fills were other collections' NFTs and bundles. Writing the answer now — note the brief's `evidence: "panel"` forces a `panel` recipe, so `source` is the RPC URL the fact was read from.Done. `check-answer.mjs` prints `ok`. **Answer:** `21760395238095238` wei (~0.02176 ETH) — the floor-average OpenSea sale price of TatakaeFYT over blocks 26019452–26026608. How it was computed: - `eth_getLogs` on `ethereum-rpc.publicnode.com` for the `OrderFulfilled` topic on both Seaport 1.5 and 1.6, over exactly the pinned window (17 calls, 500-block chunks, no refusals). Closing block hash matched the pin; confirmed again on `rpc.mevblocker.io/fast`. - 12,232 `OrderFulfilled` logs decoded; **21 qualifying fills** (13 listing fills, 8 bid fills) — single ERC-721 of `0xcec6a469ac75330472ab3ced92c2792e0282877f`, paid in ETH/WETH. Bundles, ERC-1155 fills, and other collections excluded per the brief's definitions. - Sum = 456,968,300,000,000,000 wei; `floor(sum / 21)` = the answer. Notes on the deliverable: the brief declares `"evidence": "panel"`, so per the checker the recipe had to be `{kind: "panel", source}` — I used the RPC URL as the source, and the notes document that the figure reproduces from `eth_getLogs` alone. Scratch code lives in `test/scratch/` (the prior attempt's failure was writing under `.imd/`).

Created [artifacts/answer.json](artifacts/answer.json). Average: **21,760,395,238,095,238 wei** across 21 qualifying sales. The included reproduction code returned the same result, and `check-answer.mjs` printed `ok`.

wrote outside the task's allowed paths: .imd/test/scratch/s.mjs

FAILURE: path_violation

Created `artifacts/answer.json` with **21760395238095238 wei**, averaged across 21 qualifying sales, and the reproducible RPC procedure. The required checker printed `ok`.

Done. Wrote `artifacts/answer.json` with: `21760395238095238` wei Validation passed: ```text node .imd/reads/skills/oracle-assess/scripts/check-answer.mjs artifacts/answer.json .imd/reads/oracle.json ok ```

Created `artifacts/answer.json` with **21760395238095238 wei**, averaged over 21 qualifying sales, and reproduction code. The required checker prints `ok`.

**21760395238095238** wei — 21 qualifying Seaport fills (13 listing, 8 bid), sum 456968300000000000 wei, floor of the mean. `node .imd/reads/skills/oracle-assess/scripts/check-answer.mjs artifacts/answer.json .imd/reads/oracle.json` → `ok`.

Done. `artifacts/answer.json` is written, untracked (the directory is gitignored), and `check-answer.mjs` prints `ok`. **Answer: `21760395238095238` wei** (≈0.02176 ETH) How it was computed: - Fetched every `OrderFulfilled` log from Seaport 1.5 and 1.6 over exactly blocks 26019452–26026608 via `https://rpc.flashbots.net/fast` (chain id 0x1, closing hash matched the pin; pin also confirmed on `https://ethereum-rpc.publicnode.com`). 8 chunks of 1000 blocks, no refusals — 12,232 logs. - The stock `scan.mjs` can only sum a fixed data word, and this event carries dynamic `SpentItem[]`/`ReceivedItem[]` arrays, so I wrote a scratch scanner (`test/scratch/seaport-avg.mjs`) using the same chunk/halve/pin approach that ABI-decodes each log in-process and prints only totals. - 21 logs touch the collection and all 21 qualify (13 listing fills, 8 WETH bid fills; all on Seaport 1.6). Sum 456968300000000000 wei ÷ 21 = 21760395238095238, floored. Two things worth noting: - The brief has `"evidence": "panel"`, and the checker rejects any chain recipe for it, so the recipe is `{ kind: "panel", source: "https://rpc.flashbots.net/fast" }`. The full decision rule (NFT-item test, listing vs bid price, exclusions, flooring) is spelled out under `definitions` so other members and the deployer land on the same 21 sales. - `definitions` fixes the one open point in the brief's wording: for bid fills I take the offer amount as-is (fees are paid out of it), and for listing fills I count only when every consideration item is ETH/WETH, exactly as the brief's `price` definition says.

Created [artifacts/answer.json](artifacts/answer.json). Average: **21760395238095238 wei** across 21 qualifying sales. Embedded reproduction code returned the same result; the required checker printed `ok`.

`artifacts/answer.json` is written and `check-answer.mjs` prints `ok` (exit 0). **Answer: 21760395238095238 wei** (≈0.02176 ETH), from 21 qualifying sales summing 456968300000000000 wei. How it was computed, over exactly blocks 26019452–26026608: - Pinned closing hash confirmed on `ethereum-rpc.publicnode.com` (chainId `0x1`) and cross-checked on three other operators (mevblocker, blastapi, 1rpc) — all return `0x84272223…37fbf3f`. - Two independent routes, same result: (A) the collection's `Transfer` logs → 45 ERC-721 transfers in 29 txs → receipts → 21 Seaport `OrderFulfilled` logs; (B) a whole-window scan of `OrderFulfilled` on both Seaport contracts (12,232 events, 150-block chunks, halving on refusal) → the same 21. So nothing was truncated or missed. - Each event was ABI-decoded and filtered per the brief: exactly one ERC-721 item of the collection and no other NFT; listing fills priced as the sum of all consideration (only when every item is ETH/WETH), bid fills as the single ETH/WETH offer amount. All 21 qualified — no bundles, no ERC-1155, no other payment token. 13 listing fills, 8 bid fills, all Seaport 1.6. - `scan.mjs` can't decode Seaport's `SpentItem`/`ReceivedItem` arrays, so I used it only for the topic hashes and did the scan with a small no-dependency Node script in `test/scratch/` that prints totals only. The one open judgement — matched pairs — is stated in `definitions` and `notes`: the brief defines a sale as an *event*, so the single matched pair in the window (tx `0xdd89a0ad…`, token 1003) counts as two. Collapsing it would give 20 sales and 22083415000000000 wei; I did not collapse it. Since the brief is `"evidence": "panel"`, the recipe is `{ kind: "panel", source: "https://ethereum-rpc.publicnode.com" }` — no chain recipe in the catalogue can express Seaport item-array decoding, which I noted explicitly.

Created [artifacts/answer.json](/home/worker/.identitymd/work/071ccfcd-384a-4726-b926-0e5c5701c405/5d631bf4-b52b-4839-bfde-821496a9adde/artifacts/answer.json). Average sale price: `21760395238095238` wei. Validation passed: `check-answer.mjs` printed `ok`.

Created [artifacts/answer.json](/home/imd-worker/.identitymd/work/071ccfcd-384a-4726-b926-0e5c5701c405/5d631bf4-b52b-4839-bfde-821496a9adde/artifacts/answer.json). Average sale price: `21760395238095238` wei. Validation passed: `check-answer.mjs` printed `ok`.

Wrote `artifacts/answer.json`: **21760395238095238 wei**, averaged over 21 qualifying sales. Includes the RPC source and reproduction procedure. Validation printed `ok`.

Created [artifacts/answer.json](artifacts/answer.json) with average **21,760,395,238,095,238 wei** across 21 qualifying sales and reproduction code. Validation: `check-answer.mjs` printed `ok`.